To Set Transparency of Inactive Components
When an configurable product component is active, other shaded components appear transparent grey to indicate that they are inactive.
Set a value between 0 and 100 for the style_state_transparency configuration option.
Before you open a model
1. Click Model Display. The Creo Options Modeler Options dialog box opens.
2. Continue from step 3 below.
In an open model
1. Click File > Options. The Creo Options Modeler Options dialog box opens.
2. Click Model Display.
3. Click the Enable transparency check box.
* 
When you clear the check box, the inactive components are grey.
4. Select the type of transparency Stippled or Blended.
5. Click OK.